APA (7th ed.) Citation

Barnard, S., & Child, J. M. (1949). A new algebra (1st ed., Repr.). Macmillan and Co..

Chicago Style (17th ed.) Citation

Barnard, Samuel, and J. M. Child. A New Algebra. 1st ed., Repr. London: Macmillan and Co., 1949.

MLA (9th ed.) Citation

Barnard, Samuel, and J. M. Child. A New Algebra. 1st ed., Repr. Macmillan and Co., 1949.